121748458785 has 16 divisors (see below), whose sum is σ = 196726224960. Its totient is φ = 64289614400.

The previous prime is 121748458759. The next prime is 121748458817. The reversal of 121748458785 is 587854847121.

It is not a de Polignac number, because 121748458785 - 2⁶ = 121748458721 is a prime.

It is a super-3 number, since 3×121748458785³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40179495 + ... + 40182524.

It is an arithmetic number, because the mean of its divisors is an integer number (12295389060).

Almost surely, 2^121748458785 is an apocalyptic number.

121748458785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121748458785 is a deficient number, since it is larger than the sum of its proper divisors (74977766175).

121748458785 is a wasteful number, since it uses less digits than its factorization.

121748458785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80362128.

The product of its digits is 20070400, while the sum is 60.

The spelling of 121748458785 in words is "one hundred twenty-one billion, seven hundred forty-eight million, four hundred fifty-eight thousand, seven hundred eighty-five".